Home / 223,928.19-309,014.60-121,951.35

Finding the Fourth Proportional to 223,928.19, 309,014.60 and 121,951.35

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Solution

The fourth proportional to 223,928.19, 309,014.60 and 121,951.35 is: 168,289.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,928.19 : 309,014.60 = 121,951.35 : x
  2. Step 2: Convert to fraction form
    223,928.19/309,014.60 = 121,951.35/x
  3. Step 3: Cross multiply
    223,928.19x = 309,014.60 × 121,951.35
  4. Step 4: Simplify right side
    223,928.19x = 37,684,747,029.95
  5. Step 5: Solve for x
    x = 37,684,747,029.95/223,928.19
  6. Step 6: Final answer
    x = 168,289.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.